One last question (I promise)... given that these wheels are supposed to be direct fitment, any particular reason you chose to run spacers?

Sorry for the slow response - I've retired the E90 from track duty and have been focused on fine-tuning my E36 for the track. Anyhow.

I had the spacers sitting in a drawer after a failed attempt (rubbing) to run them on my street setup with RE-11s (255/285). I thought I'd try it and it worked great. I was actually thinking of bumping the camber up half a degree or so, but I figure the spacers did that for me. Tire wear has been great.

Its hard to capture how concave they are in person. More than I thought they would be. 10x18f 10x10.5r 275/35/18-295/35/18. No rubbing anywhere any time. iPhone's really don't take the best pictures...or I dont.

Its hard to capture how concave they are in person. More than I thought they would be. 10x18f 10x10.5r 275/35/18-295/35/18. No rubbing anywhere any time. iPhone's really don't take the best pictures...or I dont.

I just bought a used E90 M3 this spring. It has the 18" gunmetal wheels on which have some road rash on all 4. I also am needing some winter wheels so I think I'll use these for my winter wheels and get some Apex ARC's next spring for my summer wheels.

I've read most of this thread and see that many are going with 275/35-18 square setup. I mostly use the car as a DD, but have done 1 auto-x this year and hope to do 5 or so next year. I may do 1 track day/ year if I can find a way to get to a track. I like the idea of being able to rotate the tires front to back, but it's not that important to me. With my usage patterns in mind would a square setup work well for me on the 18x10 inch wheels? What are the downsides to going with a 30mm wider front tire for street driving?

If I do decide to go with the 18x10 wheels what color looks best on JZB. I have seen the satin black on black picture somewhere and that looks good, but I'm not sure if I want the all black look or not. Does anyone have some pictures of the Anthracite and Hyper Black on a Black car?

I just bought a used E90 M3 this spring. It has the 18" gunmetal wheels on which have some road rash on all 4. I also am needing some winter wheels so I think I'll use these for my winter wheels and get some Apex ARC's next spring for my summer wheels.

I've read most of this thread and see that many are going with 275/35-18 square setup. I mostly use the car as a DD, but have done 1 auto-x this year and hope to do 5 or so next year. I may do 1 track day/ year if I can find a way to get to a track. I like the idea of being able to rotate the tires front to back, but it's not that important to me. With my usage patterns in mind would a square setup work well for me on the 18x10 inch wheels? What are the downsides to going with a 30mm wider front tire for street driving?
...

Your usage is similar to mine, summer DD and a few AX per year. I find absolutely NO downside to the square setup. The ride is good (on Dunlops Direzzas) and quiet and the grip is great. I haven't rotated yet, but I'll do that next spring when the winter tires come off. BTW, I use the same winters as you propose.